<?php

/**
 *      [Discuz!] (C)2001-2099 Comsenz Inc.
 *      This is NOT a freeware, use is subject to license terms
 *
 *      $Id: qrcode.class.php 33590 2013-07-12 06:39:08Z andyzheng $
 */
if(!defined('IN_DISCUZ')) {
	exit('Access Denied');
}

define('QR_MODE_NUL', -1);
define('QR_MODE_NUM', 0);
define('QR_MODE_AN', 1);
define('QR_MODE_8', 2);
define('QR_MODE_KANJI', 3);
define('QR_MODE_STRUCTURE', 4);
define('QR_ECLEVEL_L', 0);
define('QR_ECLEVEL_M', 1);
define('QR_ECLEVEL_Q', 2);
define('QR_ECLEVEL_H', 3);
define('QR_FORMAT_TEXT', 0);
define('QR_FORMAT_PNG', 1);

class qrstr {

	public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
		$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false) ? substr($repl, 0, $replLen) : $repl, $x, ($replLen !== false) ? $replLen : strlen($repl));
	}

}

define('QR_CACHEABLE', false);
define('QR_CACHE_DIR', false);
define('QR_LOG_DIR', false);
define('QR_FIND_BEST_MASK', true);
define('QR_FIND_FROM_RANDOM', 2);
define('QR_DEFAULT_MASK', 2);
define('QR_PNG_MAXIMUM_SIZE', 1024);

class QRtools {

	public static function binarize($frame) {
		$len = count($frame);
		foreach ($frame as &$frameLine) {

			for ($i = 0; $i < $len; $i++) {
				$frameLine[$i] = (ord($frameLine[$i]) & 1) ? '1' : '0';
			}
		}

		return $frame;
	}

	public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037') {
		$barcode_array = array();

		if (!is_array($mode))
			$mode = explode(',', $mode);

		$eccLevel = 'L';

		if (count($mode) > 1) {
			$eccLevel = $mode[1];
		}

		$qrTab = QRcode::text($code, false, $eccLevel);
		$size = count($qrTab);

		$barcode_array['num_rows'] = $size;
		$barcode_array['num_cols'] = $size;
		$barcode_array['bcode'] = array();

		foreach ($qrTab as $line) {
			$arrAdd = array();
			foreach (str_split($line) as $char)
				$arrAdd[] = ($char == '1') ? 1 : 0;
			$barcode_array['bcode'][] = $arrAdd;
		}

		return $barcode_array;
	}

	public static function clearCache() {
		self::$frames = array();
	}

	public static function buildCache() {
		QRtools::markTime('before_build_cache');

		$mask = new QRmask();
		for ($a = 1; $a <= QRSPEC_VERSION_MAX; $a++) {
			$frame = QRspec::newFrame($a);
			if (QR_IMAGE) {
				$fileName = QR_CACHE_DIR . 'frame_' . $a . '.png';
				QRimage::png(self::binarize($frame), $fileName, 1, 0);
			}

			$width = count($frame);
			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
			for ($maskNo = 0; $maskNo < 8; $maskNo++)
				$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
		}

		QRtools::markTime('after_build_cache');
	}

	public static function log($outfile, $err) {
		if (QR_LOG_DIR !== false) {
			if ($err != '') {
				if ($outfile !== false) {
					file_put_contents(QR_LOG_DIR . basename($outfile) . '-errors.txt', date('Y-m-d H:i:s') . ': ' . $err, FILE_APPEND);
				} else {
					file_put_contents(QR_LOG_DIR . 'errors.txt', date('Y-m-d H:i:s') . ': ' . $err, FILE_APPEND);
				}
			}
		}
	}

	public static function dumpMask($frame) {
		$width = count($frame);
		for ($y = 0; $y < $width; $y++) {
			for ($x = 0; $x < $width; $x++) {
				echo ord($frame[$y][$x]) . ',';
			}
		}
	}

	public static function markTime($markerId) {
		list($usec, $sec) = explode(" ", microtime());
		$time = ((float) $usec + (float) $sec);

		if (!isset($GLOBALS['qr_time_bench']))
			$GLOBALS['qr_time_bench'] = array();

		$GLOBALS['qr_time_bench'][$markerId] = $time;
	}

	public static function timeBenchmark() {
		self::markTime('finish');

		$lastTime = 0;
		$startTime = 0;
		$p = 0;

		echo '<table cellpadding="3" cellspacing="1">
                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
                    <tbody>';

		foreach ($GLOBALS['qr_time_bench'] as $markerId => $thisTime) {
			if ($p > 0) {
				echo '<tr><th style="text-align:right">till ' . $markerId . ': </th><td>' . number_format($thisTime - $lastTime, 6) . 's</td></tr>';
			} else {
				$startTime = $thisTime;
			}

			$p++;
			$lastTime = $thisTime;
		}

		echo '</tbody><tfoot>
                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>' . number_format($lastTime - $startTime, 6) . 's</td></tr>
            </tfoot>
            </table>';
	}

}

QRtools::markTime('start');

define('QRSPEC_VERSION_MAX', 40);
define('QRSPEC_WIDTH_MAX', 177);
define('QRCAP_WIDTH', 0);
define('QRCAP_WORDS', 1);
define('QRCAP_REMINDER', 2);
define('QRCAP_EC', 3);

class QRspec {

	public static $capacity = array(
	    array(0, 0, 0, array(0, 0, 0, 0)),
	    array(21, 26, 0, array(7, 10, 13, 17)),
	    array(25, 44, 7, array(10, 16, 22, 28)),
	    array(29, 70, 7, array(15, 26, 36, 44)),
	    array(33, 100, 7, array(20, 36, 52, 64)),
	    array(37, 134, 7, array(26, 48, 72, 88)),
	    array(41, 172, 7, array(36, 64, 96, 112)),
	    array(45, 196, 0, array(40, 72, 108, 130)),
	    array(49, 242, 0, array(48, 88, 132, 156)),
	    array(53, 292, 0, array(60, 110, 160, 192)),
	    array(57, 346, 0, array(72, 130, 192, 224)),
	    array(61, 404, 0, array(80, 150, 224, 264)),
	    array(65, 466, 0, array(96, 176, 260, 308)),
	    array(69, 532, 0, array(104, 198, 288, 352)),
	    array(73, 581, 3, array(120, 216, 320, 384)),
	    array(77, 655, 3, array(132, 240, 360, 432)),
	    array(81, 733, 3, array(144, 280, 408, 480)),
	    array(85, 815, 3, array(168, 308, 448, 532)),
	    array(89, 901, 3, array(180, 338, 504, 588)),
	    array(93, 991, 3, array(196, 364, 546, 650)),
	    array(97, 1085, 3, array(224, 416, 600, 700)),
	    array(101, 1156, 4, array(224, 442, 644, 750)),
	    array(105, 1258, 4, array(252, 476, 690, 816)),
	    array(109, 1364, 4, array(270, 504, 750, 900)),
	    array(113, 1474, 4, array(300, 560, 810, 960)),
	    array(117, 1588, 4, array(312, 588, 870, 1050)),
	    array(121, 1706, 4, array(336, 644, 952, 1110)),
	    array(125, 1828, 4, array(360, 700, 1020, 1200)),
	    array(129, 1921, 3, array(390, 728, 1050, 1260)),
	    array(133, 2051, 3, array(420, 784, 1140, 1350)),
	    array(137, 2185, 3, array(450, 812, 1200, 1440)),
	    array(141, 2323, 3, array(480, 868, 1290, 1530)),
	    array(145, 2465, 3, array(510, 924, 1350, 1620)),
	    array(149, 2611, 3, array(540, 980, 1440, 1710)),
	    array(153, 2761, 3, array(570, 1036, 1530, 1800)),
	    array(157, 2876, 0, array(570, 1064, 1590, 1890)),
	    array(161, 3034, 0, array(600, 1120, 1680, 1980)),
	    array(165, 3196, 0, array(630, 1204, 1770, 2100)),
	    array(169, 3362, 0, array(660, 1260, 1860, 2220)),
	    array(173, 3532, 0, array(720, 1316, 1950, 2310)),
	    array(177, 3706, 0, array(750, 1372, 2040, 2430))
	);

	public static function getDataLength($version, $level) {
		return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
	}

	public static function getECCLength($version, $level) {
		return self::$capacity[$version][QRCAP_EC][$level];
	}

	public static function getWidth($version) {
		return self::$capacity[$version][QRCAP_WIDTH];
	}

	public static function getRemainder($version) {
		return self::$capacity[$version][QRCAP_REMINDER];
	}

	public static function getMinimumVersion($size, $level) {

		for ($i = 1; $i <= QRSPEC_VERSION_MAX; $i++) {
			$words = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
			if ($words >= $size)
				return $i;
		}

		return -1;
	}

	public static $lengthTableBits = array(
	    array(10, 12, 14),
	    array(9, 11, 13),
	    array(8, 16, 16),
	    array(8, 10, 12)
	);

	public static function lengthIndicator($mode, $version) {
		if ($mode == QR_MODE_STRUCTURE)
			return 0;

		if ($version <= 9) {
			$l = 0;
		} else if ($version <= 26) {
			$l = 1;
		} else {
			$l = 2;
		}

		return self::$lengthTableBits[$mode][$l];
	}

	public static function maximumWords($mode, $version) {
		if ($mode == QR_MODE_STRUCTURE)
			return 3;

		if ($version <= 9) {
			$l = 0;
		} else if ($version <= 26) {
			$l = 1;
		} else {
			$l = 2;
		}

		$bits = self::$lengthTableBits[$mode][$l];
		$words = (1 << $bits) - 1;

		if ($mode == QR_MODE_KANJI) {
			$words *= 2;
		}

		return $words;
	}

	public static $eccTable = array(
	    array(array(0, 0), array(0, 0), array(0, 0), array(0, 0)),
	    array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)),
	    array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)),
	    array(array(1, 0), array(1, 0), array(2, 0), array(2, 0)),
	    array(array(1, 0), array(2, 0), array(2, 0), array(4, 0)),
	    array(array(1, 0), array(2, 0), array(2, 2), array(2, 2)),
	    array(array(2, 0), array(4, 0), array(4, 0), array(4, 0)),
	    array(array(2, 0), array(4, 0), array(2, 4), array(4, 1)),
	    array(array(2, 0), array(2, 2), array(4, 2), array(4, 2)),
	    array(array(2, 0), array(3, 2), array(4, 4), array(4, 4)),
	    array(array(2, 2), array(4, 1), array(6, 2), array(6, 2)),
	    array(array(4, 0), array(1, 4), array(4, 4), array(3, 8)),
	    array(array(2, 2), array(6, 2), array(4, 6), array(7, 4)),
	    array(array(4, 0), array(8, 1), array(8, 4), array(12, 4)),
	    array(array(3, 1), array(4, 5), array(11, 5), array(11, 5)),
	    array(array(5, 1), array(5, 5), array(5, 7), array(11, 7)),
	    array(array(5, 1), array(7, 3), array(15, 2), array(3, 13)),
	    array(array(1, 5), array(10, 1), array(1, 15), array(2, 17)),
	    array(array(5, 1), array(9, 4), array(17, 1), array(2, 19)),
	    array(array(3, 4), array(3, 11), array(17, 4), array(9, 16)),
	    array(array(3, 5), array(3, 13), array(15, 5), array(15, 10)),
	    array(array(4, 4), array(17, 0), array(17, 6), array(19, 6)),
	    array(array(2, 7), array(17, 0), array(7, 16), array(34, 0)),
	    array(array(4, 5), array(4, 14), array(11, 14), array(16, 14)),
	    array(array(6, 4), array(6, 14), array(11, 16), array(30, 2)),
	    array(array(8, 4), array(8, 13), array(7, 22), array(22, 13)),
	    array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)),
	    array(array(8, 4), array(22, 3), array(8, 26), array(12, 28)),
	    array(array(3, 10), array(3, 23), array(4, 31), array(11, 31)),
	    array(array(7, 7), array(21, 7), array(1, 37), array(19, 26)),
	    array(array(5, 10), array(19, 10), array(15, 25), array(23, 25)),
	    array(array(13, 3), array(2, 29), array(42, 1), array(23, 28)),
	    array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)),
	    array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)),
	    array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)),
	    array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)),
	    array(array(6, 14), array(6, 34), array(46, 10), array(2, 64)),
	    array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)),
	    array(array(4, 18), array(13, 32), array(48, 14), array(42, 32)),
	    array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)),
	    array(array(19, 6), array(18, 31), array(34, 34), array(20, 61)),
	);

	public static function getEccSpec($version, $level, array &$spec) {
		if (count($spec) < 5) {
			$spec = array(0, 0, 0, 0, 0);
		}

		$b1 = self::$eccTable[$version][$level][0];
		$b2 = self::$eccTable[$version][$level][1];
		$data = self::getDataLength($version, $level);
		$ecc = self::getECCLength($version, $level);

		if ($b2 == 0) {
			$spec[0] = $b1;
			$spec[1] = (int) ($data / $b1);
			$spec[2] = (int) ($ecc / $b1);
			$spec[3] = 0;
			$spec[4] = 0;
		} else {
			$spec[0] = $b1;
			$spec[1] = (int) ($data / ($b1 + $b2));
			$spec[2] = (int) ($ecc / ($b1 + $b2));
			$spec[3] = $b2;
			$spec[4] = $spec[1] + 1;
		}
	}

	public static $alignmentPattern = array(
	    array(0, 0),
	    array(0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0),
	    array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50),
	    array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48),
	    array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62),
	    array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58),
	    array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52),
	    array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54),
	    array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58),
	);

	public static function putAlignmentMarker(array &$frame, $ox, $oy) {
		$finder = array(
		    "\xa1\xa1\xa1\xa1\xa1",
		    "\xa1\xa0\xa0\xa0\xa1",
		    "\xa1\xa0\xa1\xa0\xa1",
		    "\xa1\xa0\xa0\xa0\xa1",
		    "\xa1\xa1\xa1\xa1\xa1"
		);

		$yStart = $oy - 2;
		$xStart = $ox - 2;

		for ($y = 0; $y < 5; $y++) {
			QRstr::set($frame, $xStart, $yStart + $y, $finder[$y]);
		}
	}

	public static function putAlignmentPattern($version, &$frame, $width) {
		if ($version < 2)
			return;

		$d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
		if ($d < 0) {
			$w = 2;
		} else {
			$w = (int) (($width - self::$alignmentPattern[$version][0]) / $d + 2);
		}

		if ($w * $w - 3 == 1) {
			$x = self::$alignmentPattern[$version][0];
			$y = self::$alignmentPattern[$version][0];
			self::putAlignmentMarker($frame, $x, $y);
			return;
		}

		$cx = self::$alignmentPattern[$version][0];
		for ($x = 1; $x < $w - 1; $x++) {
			self::putAlignmentMarker($frame, 6, $cx);
			self::putAlignmentMarker($frame, $cx, 6);
			$cx += $d;
		}

		$cy = self::$alignmentPattern[$version][0];
		for ($y = 0; $y < $w - 1; $y++) {
			$cx = self::$alignmentPattern[$version][0];
			for ($x = 0; $x < $w - 1; $x++) {
				self::putAlignmentMarker($frame, $cx, $cy);
				$cx += $d;
			}
			$cy += $d;
		}
	}

	public static $versionPattern = array(
	    0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
	    0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
	    0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
	    0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
	    0x27541, 0x28c69
	);

	public static function getVersionPattern($version) {
		if ($version < 7 || $version > QRSPEC_VERSION_MAX)
			return 0;

		return self::$versionPattern[$version - 7];
	}

	public static $formatInfo = array(
	    array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
	    array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
	    array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
	    array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
	);

	public static function getFormatInfo($mask, $level) {
		if ($mask < 0 || $mask > 7)
			return 0;

		if ($level < 0 || $level > 3)
			return 0;

		return self::$formatInfo[$level][$mask];
	}

	public static $frames = array();

	public static function putFinderPattern(&$frame, $ox, $oy) {
		$finder = array(
		    "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
		    "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
		    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
		    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
		    "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
		    "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
		    "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
		);

		for ($y = 0; $y < 7; $y++) {
			QRstr::set($frame, $ox, $oy + $y, $finder[$y]);
		}
	}

	public static function createFrame($version) {
		$width = self::$capacity[$version][QRCAP_WIDTH];
		$frameLine = str_repeat("\0", $width);
		$frame = array_fill(0, $width, $frameLine);

		self::putFinderPattern($frame, 0, 0);
		self::putFinderPattern($frame, $width - 7, 0);
		self::putFinderPattern($frame, 0, $width - 7);

		$yOffset = $width - 7;

		for ($y = 0; $y < 7; $y++) {
			$frame[$y][7] = "\xc0";
			$frame[$y][$width - 8] = "\xc0";
			$frame[$yOffset][7] = "\xc0";
			$yOffset++;
		}

		$setPattern = str_repeat("\xc0", 8);

		QRstr::set($frame, 0, 7, $setPattern);
		QRstr::set($frame, $width - 8, 7, $setPattern);
		QRstr::set($frame, 0, $width - 8, $setPattern);

		$setPattern = str_repeat("\x84", 9);
		QRstr::set($frame, 0, 8, $setPattern);
		QRstr::set($frame, $width - 8, 8, $setPattern, 8);

		$yOffset = $width - 8;

		for ($y = 0; $y < 8; $y++, $yOffset++) {
			$frame[$y][8] = "\x84";
			$frame[$yOffset][8] = "\x84";
		}


		for ($i = 1; $i < $width - 15; $i++) {
			$frame[6][7 + $i] = chr(0x90 | ($i & 1));
			$frame[7 + $i][6] = chr(0x90 | ($i & 1));
		}

		self::putAlignmentPattern($version, $frame, $width);

		if ($version >= 7) {
			$vinf = self::getVersionPattern($version);

			$v = $vinf;

			for ($x = 0; $x < 6; $x++) {
				for ($y = 0; $y < 3; $y++) {
					$frame[($width - 11) + $y][$x] = chr(0x88 | ($v & 1));
					$v = $v >> 1;
				}
			}

			$v = $vinf;
			for ($y = 0; $y < 6; $y++) {
				for ($x = 0; $x < 3; $x++) {
					$frame[$y][$x + ($width - 11)] = chr(0x88 | ($v & 1));
					$v = $v >> 1;
				}
			}
		}

		$frame[$width - 8][8] = "\x81";

		return $frame;
	}

	public static function debug($frame, $binary_mode = false) {
		if ($binary_mode) {

			foreach ($frame as &$frameLine) {
				$frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
				$frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
			}
			?>
			<style>
				.m { background-color: white; }
			</style>
			<?php

			echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
			echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
			echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
		} else {

			foreach ($frame as &$frameLine) {
				$frameLine = join('<span class="m">&nbsp;</span>', explode("\xc0", $frameLine));
				$frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
				$frameLine = join('<span class="p">&nbsp;</span>', explode("\xa0", $frameLine));
				$frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
				$frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine));
				$frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine));
				$frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine));
				$frameLine = join('<span class="c">&nbsp;</span>', explode("\x90", $frameLine));
				$frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine));
				$frameLine = join('<span class="f">&nbsp;</span>', explode("\x88", $frameLine));
				$frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine));
				$frameLine = join('&#9830;', explode("\x01", $frameLine));
				$frameLine = join('&#8901;', explode("\0", $frameLine));
			}
			?>
			<style>
				.p { background-color: yellow; }
				.m { background-color: #00FF00; }
				.s { background-color: #FF0000; }
				.c { background-color: aqua; }
				.x { background-color: pink; }
				.f { background-color: gold; }
			</style>
			<?php

			echo "<pre><tt>";
			echo join("<br/ >", $frame);
			echo "</tt></pre>";
		}
	}

	public static function serial($frame) {
		return gzcompress(join("\n", $frame), 9);
	}

	public static function unserial($code) {
		return explode("\n", gzuncompress($code));
	}

	public static function newFrame($version) {
		if ($version < 1 || $version > QRSPEC_VERSION_MAX)
			return null;

		if (!isset(self::$frames[$version])) {

			$fileName = QR_CACHE_DIR . 'frame_' . $version . '.dat';

			if (QR_CACHEABLE) {
				if (file_exists($fileName)) {
					self::$frames[$version] = self::unserial(file_get_contents($fileName));
				} else {
					self::$frames[$version] = self::createFrame($version);
					file_put_contents($fileName, self::serial(self::$frames[$version]));
				}
			} else {
				self::$frames[$version] = self::createFrame($version);
			}
		}

		if (is_null(self::$frames[$version]))
			return null;

		return self::$frames[$version];
	}

	public static function rsBlockNum($spec) {
		return $spec[0] + $spec[3];
	}

	public static function rsBlockNum1($spec) {
		return $spec[0];
	}

	public static function rsDataCodes1($spec) {
		return $spec[1];
	}

	public static function rsEccCodes1($spec) {
		return $spec[2];
	}

	public static function rsBlockNum2($spec) {
		return $spec[3];
	}

	public static function rsDataCodes2($spec) {
		return $spec[4];
	}

	public static function rsEccCodes2($spec) {
		return $spec[2];
	}

	public static function rsDataLength($spec) {
		return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
	}

	public static function rsEccLength($spec) {
		return ($spec[0] + $spec[3]) * $spec[2];
	}

}

define('QR_IMAGE', true);

class QRimage {

	public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4, $saveandprint = FALSE) {
		$image = self::image($frame, $pixelPerPoint, $outerFrame);

		if ($filename === false) {
			Header("Content-type: image/png");
			ImagePng($image);
		} else {
			if ($saveandprint === TRUE) {
				ImagePng($image, $filename);
				header("Content-type: image/png");
				ImagePng($image);
			} else {
				ImagePng($image, $filename);
			}
		}

		ImageDestroy($image);
	}

	public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) {
		$image = self::image($frame, $pixelPerPoint, $outerFrame);

		if ($filename === false) {
			Header("Content-type: image/jpeg");
			ImageJpeg($image, null, $q);
		} else {
			ImageJpeg($image, $filename, $q);
		}

		ImageDestroy($image);
	}

	private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) {
		$h = count($frame);
		$w = strlen($frame[0]);

		$imgW = $w + 2 * $outerFrame;
		$imgH = $h + 2 * $outerFrame;

		$base_image = ImageCreate($imgW, $imgH);

		$col[0] = ImageColorAllocate($base_image, 255, 255, 255);
		$col[1] = ImageColorAllocate($base_image, 0, 0, 0);

		imagefill($base_image, 0, 0, $col[0]);

		for ($y = 0; $y < $h; $y++) {
			for ($x = 0; $x < $w; $x++) {
				if ($frame[$y][$x] == '1') {
					ImageSetPixel($base_image, $x + $outerFrame, $y + $outerFrame, $col[1]);
				}
			}
		}

		$target_image = ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
		ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
		ImageDestroy($base_image);

		return $target_image;
	}

}

define('STRUCTURE_HEADER_BITS', 20);
define('MAX_STRUCTURED_SYMBOLS', 16);

class QRinputItem {

	public $mode;
	public $size;
	public $data;
	public $bstream;

	public function __construct($mode, $size, $data, $bstream = null) {
		$setData = array_slice($data, 0, $size);

		if (count($setData) < $size) {
			$setData = array_merge($setData, array_fill(0, $size - count($setData), 0));
		}

		if (!QRinput::check($mode, $size, $setData)) {
			throw new Exception('Error m:' . $mode . ',s:' . $size . ',d:' . join(',', $setData));
			return null;
		}

		$this->mode = $mode;
		$this->size = $size;
		$this->data = $setData;
		$this->bstream = $bstream;
	}

	public function encodeModeNum($version) {
		try {

			$words = (int) ($this->size / 3);
			$bs = new QRbitstream();

			$val = 0x1;
			$bs->appendNum(4, $val);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);

			for ($i = 0; $i < $words; $i++) {
				$val = (ord($this->data[$i * 3]) - ord('0')) * 100;
				$val += (ord($this->data[$i * 3 + 1]) - ord('0')) * 10;
				$val += (ord($this->data[$i * 3 + 2]) - ord('0'));
				$bs->appendNum(10, $val);
			}

			if ($this->size - $words * 3 == 1) {
				$val = ord($this->data[$words * 3]) - ord('0');
				$bs->appendNum(4, $val);
			} else if ($this->size - $words * 3 == 2) {
				$val = (ord($this->data[$words * 3]) - ord('0')) * 10;
				$val += (ord($this->data[$words * 3 + 1]) - ord('0'));
				$bs->appendNum(7, $val);
			}

			$this->bstream = $bs;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function encodeModeAn($version) {
		try {
			$words = (int) ($this->size / 2);
			$bs = new QRbitstream();

			$bs->appendNum(4, 0x02);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);

			for ($i = 0; $i < $words; $i++) {
				$val = (int) QRinput::lookAnTable(ord($this->data[$i * 2])) * 45;
				$val += (int) QRinput::lookAnTable(ord($this->data[$i * 2 + 1]));

				$bs->appendNum(11, $val);
			}

			if ($this->size & 1) {
				$val = QRinput::lookAnTable(ord($this->data[$words * 2]));
				$bs->appendNum(6, $val);
			}

			$this->bstream = $bs;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function encodeMode8($version) {
		try {
			$bs = new QRbitstream();

			$bs->appendNum(4, 0x4);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);

			for ($i = 0; $i < $this->size; $i++) {
				$bs->appendNum(8, ord($this->data[$i]));
			}

			$this->bstream = $bs;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function encodeModeKanji($version) {
		try {

			$bs = new QRbitstream();

			$bs->appendNum(4, 0x8);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int) ($this->size / 2));

			for ($i = 0; $i < $this->size; $i+=2) {
				$val = (ord($this->data[$i]) << 8) | ord($this->data[$i + 1]);
				if ($val <= 0x9ffc) {
					$val -= 0x8140;
				} else {
					$val -= 0xc140;
				}

				$h = ($val >> 8) * 0xc0;
				$val = ($val & 0xff) + $h;

				$bs->appendNum(13, $val);
			}

			$this->bstream = $bs;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function encodeModeStructure() {
		try {
			$bs = new QRbitstream();

			$bs->appendNum(4, 0x03);
			$bs->appendNum(4, ord($this->data[1]) - 1);
			$bs->appendNum(4, ord($this->data[0]) - 1);
			$bs->appendNum(8, ord($this->data[2]));

			$this->bstream = $bs;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function estimateBitStreamSizeOfEntry($version) {
		$bits = 0;

		if ($version == 0)
			$version = 1;

		switch ($this->mode) {
			case QR_MODE_NUM: $bits = QRinput::estimateBitsModeNum($this->size);
				break;
			case QR_MODE_AN: $bits = QRinput::estimateBitsModeAn($this->size);
				break;
			case QR_MODE_8: $bits = QRinput::estimateBitsMode8($this->size);
				break;
			case QR_MODE_KANJI: $bits = QRinput::estimateBitsModeKanji($this->size);
				break;
			case QR_MODE_STRUCTURE: return STRUCTURE_HEADER_BITS;
			default:
				return 0;
		}

		$l = QRspec::lengthIndicator($this->mode, $version);
		$m = 1 << $l;
		$num = (int) (($this->size + $m - 1) / $m);

		$bits += $num * (4 + $l);

		return $bits;
	}

	public function encodeBitStream($version) {
		try {

			unset($this->bstream);
			$words = QRspec::maximumWords($this->mode, $version);

			if ($this->size > $words) {

				$st1 = new QRinputItem($this->mode, $words, $this->data);
				$st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));

				$st1->encodeBitStream($version);
				$st2->encodeBitStream($version);

				$this->bstream = new QRbitstream();
				$this->bstream->append($st1->bstream);
				$this->bstream->append($st2->bstream);

				unset($st1);
				unset($st2);
			} else {

				$ret = 0;

				switch ($this->mode) {
					case QR_MODE_NUM: $ret = $this->encodeModeNum($version);
						break;
					case QR_MODE_AN: $ret = $this->encodeModeAn($version);
						break;
					case QR_MODE_8: $ret = $this->encodeMode8($version);
						break;
					case QR_MODE_KANJI: $ret = $this->encodeModeKanji($version);
						break;
					case QR_MODE_STRUCTURE: $ret = $this->encodeModeStructure();
						break;

					default:
						break;
				}

				if ($ret < 0)
					return -1;
			}

			return $this->bstream->size();
		} catch (Exception $e) {
			return -1;
		}
	}

}

;

class QRinput {

	public $items;
	private $version;
	private $level;

	public function __construct($version = 0, $level = QR_ECLEVEL_L) {
		if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
			throw new Exception('Invalid version no');
			return NULL;
		}

		$this->version = $version;
		$this->level = $level;
	}

	public function getVersion() {
		return $this->version;
	}

	public function setVersion($version) {
		if ($version < 0 || $version > QRSPEC_VERSION_MAX) {
			throw new Exception('Invalid version no');
			return -1;
		}

		$this->version = $version;

		return 0;
	}

	public function getErrorCorrectionLevel() {
		return $this->level;
	}

	public function setErrorCorrectionLevel($level) {
		if ($level > QR_ECLEVEL_H) {
			throw new Exception('Invalid ECLEVEL');
			return -1;
		}

		$this->level = $level;

		return 0;
	}

	public function appendEntry(QRinputItem $entry) {
		$this->items[] = $entry;
	}

	public function append($mode, $size, $data) {
		try {
			$entry = new QRinputItem($mode, $size, $data);
			$this->items[] = $entry;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function insertStructuredAppendHeader($size, $index, $parity) {
		if ($size > MAX_STRUCTURED_SYMBOLS) {
			throw new Exception('insertStructuredAppendHeader wrong size');
		}

		if ($index <= 0 || $index > MAX_STRUCTURED_SYMBOLS) {
			throw new Exception('insertStructuredAppendHeader wrong index');
		}

		$buf = array($size, $index, $parity);

		try {
			$entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
			array_unshift($this->items, $entry);
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	public function calcParity() {
		$parity = 0;

		foreach ($this->items as $item) {
			if ($item->mode != QR_MODE_STRUCTURE) {
				for ($i = $item->size - 1; $i >= 0; $i--) {
					$parity ^= $item->data[$i];
				}
			}
		}

		return $parity;
	}

	public static function checkModeNum($size, $data) {
		for ($i = 0; $i < $size; $i++) {
			if ((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))) {
				return false;
			}
		}

		return true;
	}

	public static function estimateBitsModeNum($size) {
		$w = (int) $size / 3;
		$bits = $w * 10;

		switch ($size - $w * 3) {
			case 1:
				$bits += 4;
				break;
			case 2:
				$bits += 7;
				break;
			default:
				break;
		}

		return $bits;
	}

	public static $anTable = array(
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
	    36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
	    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1,
	    -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
	    25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
	);

	public static function lookAnTable($c) {
		return (($c > 127) ? -1 : self::$anTable[$c]);
	}

	public static function checkModeAn($size, $data) {
		for ($i = 0; $i < $size; $i++) {
			if (self::lookAnTable(ord($data[$i])) == -1) {
				return false;
			}
		}

		return true;
	}

	public static function estimateBitsModeAn($size) {
		$w = (int) ($size / 2);
		$bits = $w * 11;

		if ($size & 1) {
			$bits += 6;
		}

		return $bits;
	}

	public static function estimateBitsMode8($size) {
		return $size * 8;
	}

	public function estimateBitsModeKanji($size) {
		return (int) (($size / 2) * 13);
	}

	public static function checkModeKanji($size, $data) {
		if ($size & 1)
			return false;

		for ($i = 0; $i < $size; $i+=2) {
			$val = (ord($data[$i]) << 8) | ord($data[$i + 1]);
			if ($val < 0x8140
				|| ($val > 0x9ffc && $val < 0xe040)
				|| $val > 0xebbf) {
				return false;
			}
		}

		return true;
	}

	public static function check($mode, $size, $data) {
		if ($size <= 0)
			return false;

		switch ($mode) {
			case QR_MODE_NUM: return self::checkModeNum($size, $data);
				break;
			case QR_MODE_AN: return self::checkModeAn($size, $data);
				break;
			case QR_MODE_KANJI: return self::checkModeKanji($size, $data);
				break;
			case QR_MODE_8: return true;
				break;
			case QR_MODE_STRUCTURE: return true;
				break;

			default:
				break;
		}

		return false;
	}

	public function estimateBitStreamSize($version) {
		$bits = 0;

		foreach ($this->items as $item) {
			$bits += $item->estimateBitStreamSizeOfEntry($version);
		}

		return $bits;
	}

	public function estimateVersion() {
		$version = 0;
		$prev = 0;
		do {
			$prev = $version;
			$bits = $this->estimateBitStreamSize($prev);
			$version = QRspec::getMinimumVersion((int) (($bits + 7) / 8), $this->level);
			if ($version < 0) {
				return -1;
			}
		} while ($version > $prev);

		return $version;
	}

	public static function lengthOfCode($mode, $version, $bits) {
		$payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
		switch ($mode) {
			case QR_MODE_NUM:
				$chunks = (int) ($payload / 10);
				$remain = $payload - $chunks * 10;
				$size = $chunks * 3;
				if ($remain >= 7) {
					$size += 2;
				} else if ($remain >= 4) {
					$size += 1;
				}
				break;
			case QR_MODE_AN:
				$chunks = (int) ($payload / 11);
				$remain = $payload - $chunks * 11;
				$size = $chunks * 2;
				if ($remain >= 6)
					$size++;
				break;
			case QR_MODE_8:
				$size = (int) ($payload / 8);
				break;
			case QR_MODE_KANJI:
				$size = (int) (($payload / 13) * 2);
				break;
			case QR_MODE_STRUCTURE:
				$size = (int) ($payload / 8);
				break;
			default:
				$size = 0;
				break;
		}

		$maxsize = QRspec::maximumWords($mode, $version);
		if ($size < 0)
			$size = 0;
		if ($size > $maxsize)
			$size = $maxsize;

		return $size;
	}

	public function createBitStream() {
		$total = 0;

		foreach ($this->items as $item) {
			$bits = $item->encodeBitStream($this->version);

			if ($bits < 0)
				return -1;

			$total += $bits;
		}

		return $total;
	}

	public function convertData() {
		$ver = $this->estimateVersion();
		if ($ver > $this->getVersion()) {
			$this->setVersion($ver);
		}

		for (;;) {
			$bits = $this->createBitStream();

			if ($bits < 0)
				return -1;

			$ver = QRspec::getMinimumVersion((int) (($bits + 7) / 8), $this->level);
			if ($ver < 0) {
				throw new Exception('WRONG VERSION');
				return -1;
			} else if ($ver > $this->getVersion()) {
				$this->setVersion($ver);
			} else {
				break;
			}
		}

		return 0;
	}

	public function appendPaddingBit(&$bstream) {
		$bits = $bstream->size();
		$maxwords = QRspec::getDataLength($this->version, $this->level);
		$maxbits = $maxwords * 8;

		if ($maxbits == $bits) {
			return 0;
		}

		if ($maxbits - $bits < 5) {
			return $bstream->appendNum($maxbits - $bits, 0);
		}

		$bits += 4;
		$words = (int) (($bits + 7) / 8);

		$padding = new QRbitstream();
		$ret = $padding->appendNum($words * 8 - $bits + 4, 0);

		if ($ret < 0)
			return $ret;

		$padlen = $maxwords - $words;

		if ($padlen > 0) {

			$padbuf = array();
			for ($i = 0; $i < $padlen; $i++) {
				$padbuf[$i] = ($i & 1) ? 0x11 : 0xec;
			}

			$ret = $padding->appendBytes($padlen, $padbuf);

			if ($ret < 0)
				return $ret;
		}

		$ret = $bstream->append($padding);

		return $ret;
	}

	public function mergeBitStream() {
		if ($this->convertData() < 0) {
			return null;
		}

		$bstream = new QRbitstream();

		foreach ($this->items as $item) {
			$ret = $bstream->append($item->bstream);
			if ($ret < 0) {
				return null;
			}
		}

		return $bstream;
	}

	public function getBitStream() {

		$bstream = $this->mergeBitStream();

		if ($bstream == null) {
			return null;
		}

		$ret = $this->appendPaddingBit($bstream);
		if ($ret < 0) {
			return null;
		}

		return $bstream;
	}

	public function getByteStream() {
		$bstream = $this->getBitStream();
		if ($bstream == null) {
			return null;
		}

		return $bstream->toByte();
	}

}

class QRbitstream {

	public $data = array();

	public function size() {
		return count($this->data);
	}

	public function allocate($setLength) {
		$this->data = array_fill(0, $setLength, 0);
		return 0;
	}

	public static function newFromNum($bits, $num) {
		$bstream = new QRbitstream();
		$bstream->allocate($bits);

		$mask = 1 << ($bits - 1);
		for ($i = 0; $i < $bits; $i++) {
			if ($num & $mask) {
				$bstream->data[$i] = 1;
			} else {
				$bstream->data[$i] = 0;
			}
			$mask = $mask >> 1;
		}

		return $bstream;
	}

	public static function newFromBytes($size, $data) {
		$bstream = new QRbitstream();
		$bstream->allocate($size * 8);
		$p = 0;

		for ($i = 0; $i < $size; $i++) {
			$mask = 0x80;
			for ($j = 0; $j < 8; $j++) {
				if ($data[$i] & $mask) {
					$bstream->data[$p] = 1;
				} else {
					$bstream->data[$p] = 0;
				}
				$p++;
				$mask = $mask >> 1;
			}
		}

		return $bstream;
	}

	public function append(QRbitstream $arg) {
		if (is_null($arg)) {
			return -1;
		}

		if ($arg->size() == 0) {
			return 0;
		}

		if ($this->size() == 0) {
			$this->data = $arg->data;
			return 0;
		}

		$this->data = array_values(array_merge($this->data, $arg->data));

		return 0;
	}

	public function appendNum($bits, $num) {
		if ($bits == 0)
			return 0;

		$b = QRbitstream::newFromNum($bits, $num);

		if (is_null($b))
			return -1;

		$ret = $this->append($b);
		unset($b);

		return $ret;
	}

	public function appendBytes($size, $data) {
		if ($size == 0)
			return 0;

		$b = QRbitstream::newFromBytes($size, $data);

		if (is_null($b))
			return -1;

		$ret = $this->append($b);
		unset($b);

		return $ret;
	}

	public function toByte() {

		$size = $this->size();

		if ($size == 0) {
			return array();
		}

		$data = array_fill(0, (int) (($size + 7) / 8), 0);
		$bytes = (int) ($size / 8);

		$p = 0;

		for ($i = 0; $i < $bytes; $i++) {
			$v = 0;
			for ($j = 0; $j < 8; $j++) {
				$v = $v << 1;
				$v |= $this->data[$p];
				$p++;
			}
			$data[$i] = $v;
		}

		if ($size & 7) {
			$v = 0;
			for ($j = 0; $j < ($size & 7); $j++) {
				$v = $v << 1;
				$v |= $this->data[$p];
				$p++;
			}
			$data[$bytes] = $v;
		}

		return $data;
	}

}

class QRsplit {

	public $dataStr = '';
	public $input;
	public $modeHint;

	public function __construct($dataStr, $input, $modeHint) {
		$this->dataStr = $dataStr;
		$this->input = $input;
		$this->modeHint = $modeHint;
	}

	public static function isdigitat($str, $pos) {
		if ($pos >= strlen($str))
			return false;

		return ((ord($str[$pos]) >= ord('0')) && (ord($str[$pos]) <= ord('9')));
	}

	public static function isalnumat($str, $pos) {
		if ($pos >= strlen($str))
			return false;

		return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
	}

	public function identifyMode($pos) {
		if ($pos >= strlen($this->dataStr))
			return QR_MODE_NUL;

		$c = $this->dataStr[$pos];

		if (self::isdigitat($this->dataStr, $pos)) {
			return QR_MODE_NUM;
		} else if (self::isalnumat($this->dataStr, $pos)) {
			return QR_MODE_AN;
		} else if ($this->modeHint == QR_MODE_KANJI) {

			if ($pos + 1 < strlen($this->dataStr)) {
				$d = $this->dataStr[$pos + 1];
				$word = (ord($c) << 8) | ord($d);
				if (($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
					return QR_MODE_KANJI;
				}
			}
		}

		return QR_MODE_8;
	}

	public function eatNum() {
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 0;
		while (self::isdigitat($this->dataStr, $p)) {
			$p++;
		}

		$run = $p;
		$mode = $this->identifyMode($p);

		if ($mode == QR_MODE_8) {
			$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
				+ QRinput::estimateBitsMode8(1)
				- QRinput::estimateBitsMode8($run + 1);
			if ($dif > 0) {
				return $this->eat8();
			}
		}
		if ($mode == QR_MODE_AN) {
			$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
				+ QRinput::estimateBitsModeAn(1)
				- QRinput::estimateBitsModeAn($run + 1);
			if ($dif > 0) {
				return $this->eatAn();
			}
		}

		$ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
		if ($ret < 0)
			return -1;

		return $run;
	}

	public function eatAn() {
		$la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 0;

		while (self::isalnumat($this->dataStr, $p)) {
			if (self::isdigitat($this->dataStr, $p)) {
				$q = $p;
				while (self::isdigitat($this->dataStr, $q)) {
					$q++;
				}

				$dif = QRinput::estimateBitsModeAn($p)
					+ QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
					- QRinput::estimateBitsModeAn($q);

				if ($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else {
				$p++;
			}
		}

		$run = $p;

		if (!self::isalnumat($this->dataStr, $p)) {
			$dif = QRinput::estimateBitsModeAn($run) + 4 + $la
				+ QRinput::estimateBitsMode8(1)
				- QRinput::estimateBitsMode8($run + 1);
			if ($dif > 0) {
				return $this->eat8();
			}
		}

		$ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
		if ($ret < 0)
			return -1;

		return $run;
	}

	public function eatKanji() {
		$p = 0;

		while ($this->identifyMode($p) == QR_MODE_KANJI) {
			$p += 2;
		}

		$ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
		if ($ret < 0)
			return -1;

		return $run;
	}

	public function eat8() {
		$la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 1;
		$dataStrLen = strlen($this->dataStr);

		while ($p < $dataStrLen) {

			$mode = $this->identifyMode($p);
			if ($mode == QR_MODE_KANJI) {
				break;
			}
			if ($mode == QR_MODE_NUM) {
				$q = $p;
				while (self::isdigitat($this->dataStr, $q)) {
					$q++;
				}
				$dif = QRinput::estimateBitsMode8($p)
					+ QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
					- QRinput::estimateBitsMode8($q);
				if ($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else if ($mode == QR_MODE_AN) {
				$q = $p;
				while (self::isalnumat($this->dataStr, $q)) {
					$q++;
				}
				$dif = QRinput::estimateBitsMode8($p)
					+ QRinput::estimateBitsModeAn($q - $p) + 4 + $la
					- QRinput::estimateBitsMode8($q);
				if ($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else {
				$p++;
			}
		}

		$run = $p;
		$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));

		if ($ret < 0)
			return -1;

		return $run;
	}

	public function splitString() {
		while (strlen($this->dataStr) > 0) {
			if ($this->dataStr == '')
				return 0;

			$mode = $this->identifyMode(0);

			switch ($mode) {
				case QR_MODE_NUM: $length = $this->eatNum();
					break;
				case QR_MODE_AN: $length = $this->eatAn();
					break;
				case QR_MODE_KANJI:
					if ($hint == QR_MODE_KANJI)
						$length = $this->eatKanji();
					else
						$length = $this->eat8();
					break;
				default: $length = $this->eat8();
					break;
			}

			if ($length == 0)
				return 0;
			if ($length < 0)
				return -1;

			$this->dataStr = substr($this->dataStr, $length);
		}
	}

	public function toUpper() {
		$stringLen = strlen($this->dataStr);
		$p = 0;

		while ($p < $stringLen) {
			$mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
			if ($mode == QR_MODE_KANJI) {
				$p += 2;
			} else {
				if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
					$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
				}
				$p++;
			}
		}

		return $this->dataStr;
	}

	public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true) {
		if (is_null($string) || $string == '\0' || $string == '') {
			throw new Exception('empty string!!!');
		}

		$split = new QRsplit($string, $input, $modeHint);

		if (!$casesensitive)
			$split->toUpper();

		return $split->splitString();
	}

}

class QRrsItem {

	public $mm;
	public $nn;
	public $alpha_to = array();
	public $index_of = array();
	public $genpoly = array();
	public $nroots;
	public $fcr;
	public $prim;
	public $iprim;
	public $pad;
	public $gfpoly;

	public function modnn($x) {
		while ($x >= $this->nn) {
			$x -= $this->nn;
			$x = ($x >> $this->mm) + ($x & $this->nn);
		}

		return $x;
	}

	public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {

		$rs = null;

		if ($symsize < 0 || $symsize > 8)
			return $rs;
		if ($fcr < 0 || $fcr >= (1 << $symsize))
			return $rs;
		if ($prim <= 0 || $prim >= (1 << $symsize))
			return $rs;
		if ($nroots < 0 || $nroots >= (1 << $symsize))
			return $rs;
		if ($pad < 0 || $pad >= ((1 << $symsize) - 1 - $nroots))
			return $rs;

		$rs = new QRrsItem();
		$rs->mm = $symsize;
		$rs->nn = (1 << $symsize) - 1;
		$rs->pad = $pad;

		$rs->alpha_to = array_fill(0, $rs->nn + 1, 0);
		$rs->index_of = array_fill(0, $rs->nn + 1, 0);

		$NN = & $rs->nn;
		$A0 = & $NN;

		$rs->index_of[0] = $A0;
		$rs->alpha_to[$A0] = 0;
		$sr = 1;

		for ($i = 0; $i < $rs->nn; $i++) {
			$rs->index_of[$sr] = $i;
			$rs->alpha_to[$i] = $sr;
			$sr <<= 1;
			if ($sr & (1 << $symsize)) {
				$sr ^= $gfpoly;
			}
			$sr &= $rs->nn;
		}

		if ($sr != 1) {
			$rs = NULL;
			return $rs;
		}

		$rs->genpoly = array_fill(0, $nroots + 1, 0);

		$rs->fcr = $fcr;
		$rs->prim = $prim;
		$rs->nroots = $nroots;
		$rs->gfpoly = $gfpoly;

		for ($iprim = 1; ($iprim % $prim) != 0; $iprim += $rs->nn)
			;

		$rs->iprim = (int) ($iprim / $prim);
		$rs->genpoly[0] = 1;

		for ($i = 0, $root = $fcr * $prim; $i < $nroots; $i++, $root += $prim) {
			$rs->genpoly[$i + 1] = 1;

			for ($j = $i; $j > 0; $j--) {
				if ($rs->genpoly[$j] != 0) {
					$rs->genpoly[$j] = $rs->genpoly[$j - 1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
				} else {
					$rs->genpoly[$j] = $rs->genpoly[$j - 1];
				}
			}
			$rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
		}

		for ($i = 0; $i <= $nroots; $i++)
			$rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];

		return $rs;
	}

	public function encode_rs_char($data, &$parity) {
		$MM = & $this->mm;
		$NN = & $this->nn;
		$ALPHA_TO = & $this->alpha_to;
		$INDEX_OF = & $this->index_of;
		$GENPOLY = & $this->genpoly;
		$NROOTS = & $this->nroots;
		$FCR = & $this->fcr;
		$PRIM = & $this->prim;
		$IPRIM = & $this->iprim;
		$PAD = & $this->pad;
		$A0 = & $NN;

		$parity = array_fill(0, $NROOTS, 0);

		for ($i = 0; $i < ($NN - $NROOTS - $PAD); $i++) {

			$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
			if ($feedback != $A0) {

				$feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);

				for ($j = 1; $j < $NROOTS; $j++) {
					$parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS - $j])];
				}
			}

			array_shift($parity);
			if ($feedback != $A0) {
				array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
			} else {
				array_push($parity, 0);
			}
		}
	}

}

class QRrs {

	public static $items = array();

	public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
		foreach (self::$items as $rs) {
			if ($rs->pad != $pad)
				continue;
			if ($rs->nroots != $nroots)
				continue;
			if ($rs->mm != $symsize)
				continue;
			if ($rs->gfpoly != $gfpoly)
				continue;
			if ($rs->fcr != $fcr)
				continue;
			if ($rs->prim != $prim)
				continue;

			return $rs;
		}

		$rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
		array_unshift(self::$items, $rs);

		return $rs;
	}

}

define('N1', 3);
define('N2', 3);
define('N3', 40);
define('N4', 10);

class QRmask {

	public $runLength = array();

	public function __construct() {
		$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
	}

	public function writeFormatInformation($width, &$frame, $mask, $level) {
		$blacks = 0;
		$format = QRspec::getFormatInfo($mask, $level);

		for ($i = 0; $i < 8; $i++) {
			if ($format & 1) {
				$blacks += 2;
				$v = 0x85;
			} else {
				$v = 0x84;
			}

			$frame[8][$width - 1 - $i] = chr($v);
			if ($i < 6) {
				$frame[$i][8] = chr($v);
			} else {
				$frame[$i + 1][8] = chr($v);
			}
			$format = $format >> 1;
		}

		for ($i = 0; $i < 7; $i++) {
			if ($format & 1) {
				$blacks += 2;
				$v = 0x85;
			} else {
				$v = 0x84;
			}

			$frame[$width - 7 + $i][8] = chr($v);
			if ($i == 0) {
				$frame[8][7] = chr($v);
			} else {
				$frame[8][6 - $i] = chr($v);
			}

			$format = $format >> 1;
		}

		return $blacks;
	}

	public function mask0($x, $y) {
		return ($x + $y) & 1;
	}

	public function mask1($x, $y) {
		return ($y & 1);
	}

	public function mask2($x, $y) {
		return ($x % 3);
	}

	public function mask3($x, $y) {
		return ($x + $y) % 3;
	}

	public function mask4($x, $y) {
		return (((int) ($y / 2)) + ((int) ($x / 3))) & 1;
	}

	public function mask5($x, $y) {
		return (($x * $y) & 1) + ($x * $y) % 3;
	}

	public function mask6($x, $y) {
		return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
	}

	public function mask7($x, $y) {
		return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
	}

	private function generateMaskNo($maskNo, $width, $frame) {
		$bitMask = array_fill(0, $width, array_fill(0, $width, 0));

		for ($y = 0; $y < $width; $y++) {
			for ($x = 0; $x < $width; $x++) {
				if (ord($frame[$y][$x]) & 0x80) {
					$bitMask[$y][$x] = 0;
				} else {
					$maskFunc = call_user_func(array($this, 'mask' . $maskNo), $x, $y);
					$bitMask[$y][$x] = ($maskFunc == 0) ? 1 : 0;
				}
			}
		}

		return $bitMask;
	}

	public static function serial($bitFrame) {
		$codeArr = array();

		foreach ($bitFrame as $line)
			$codeArr[] = join('', $line);

		return gzcompress(join("\n", $codeArr), 9);
	}

	public static function unserial($code) {
		$codeArr = array();

		$codeLines = explode("\n", gzuncompress($code));
		foreach ($codeLines as $line)
			$codeArr[] = str_split($line);

		return $codeArr;
	}

	public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) {
		$b = 0;
		$bitMask = array();

		$fileName = QR_CACHE_DIR . 'mask_' . $maskNo . DIRECTORY_SEPARATOR . 'mask_' . $width . '_' . $maskNo . '.dat';

		if (QR_CACHEABLE) {
			if (file_exists($fileName)) {
				$bitMask = self::unserial(file_get_contents($fileName));
			} else {
				$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
				if (!file_exists(QR_CACHE_DIR . 'mask_' . $maskNo))
					mkdir(QR_CACHE_DIR . 'mask_' . $maskNo);
				file_put_contents($fileName, self::serial($bitMask));
			}
		} else {
			$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
		}

		if ($maskGenOnly)
			return;

		$d = $s;

		for ($y = 0; $y < $width; $y++) {
			for ($x = 0; $x < $width; $x++) {
				if ($bitMask[$y][$x] == 1) {
					$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int) $bitMask[$y][$x]);
				}
				$b += (int) (ord($d[$y][$x]) & 1);
			}
		}

		return $b;
	}

	public function makeMask($width, $frame, $maskNo, $level) {
		$masked = array_fill(0, $width, str_repeat("\0", $width));
		$this->makeMaskNo($maskNo, $width, $frame, $masked);
		$this->writeFormatInformation($width, $masked, $maskNo, $level);

		return $masked;
	}

	public function calcN1N3($length) {
		$demerit = 0;

		for ($i = 0; $i < $length; $i++) {

			if ($this->runLength[$i] >= 5) {
				$demerit += (N1 + ($this->runLength[$i] - 5));
			}
			if ($i & 1) {
				if (($i >= 3) && ($i < ($length - 2)) && ($this->runLength[$i] % 3 == 0)) {
					$fact = (int) ($this->runLength[$i] / 3);
					if (($this->runLength[$i - 2] == $fact) &&
						($this->runLength[$i - 1] == $fact) &&
						($this->runLength[$i + 1] == $fact) &&
						($this->runLength[$i + 2] == $fact)) {
						if (($this->runLength[$i - 3] < 0) || ($this->runLength[$i - 3] >= (4 * $fact))) {
							$demerit += N3;
						} else if ((($i + 3) >= $length) || ($this->runLength[$i + 3] >= (4 * $fact))) {
							$demerit += N3;
						}
					}
				}
			}
		}
		return $demerit;
	}

	public function evaluateSymbol($width, $frame) {
		$head = 0;
		$demerit = 0;

		for ($y = 0; $y < $width; $y++) {
			$head = 0;
			$this->runLength[0] = 1;

			$frameY = $frame[$y];

			if ($y > 0)
				$frameYM = $frame[$y - 1];

			for ($x = 0; $x < $width; $x++) {
				if (($x > 0) && ($y > 0)) {
					$b22 = ord($frameY[$x]) & ord($frameY[$x - 1]) & ord($frameYM[$x]) & ord($frameYM[$x - 1]);
					$w22 = ord($frameY[$x]) | ord($frameY[$x - 1]) | ord($frameYM[$x]) | ord($frameYM[$x - 1]);

					if (($b22 | ($w22 ^ 1)) & 1) {
						$demerit += N2;
					}
				}
				if (($x == 0) && (ord($frameY[$x]) & 1)) {
					$this->runLength[0] = -1;
					$head = 1;
					$this->runLength[$head] = 1;
				} else if ($x > 0) {
					if ((ord($frameY[$x]) ^ ord($frameY[$x - 1])) & 1) {
						$head++;
						$this->runLength[$head] = 1;
					} else {
						$this->runLength[$head]++;
					}
				}
			}

			$demerit += $this->calcN1N3($head + 1);
		}

		for ($x = 0; $x < $width; $x++) {
			$head = 0;
			$this->runLength[0] = 1;

			for ($y = 0; $y < $width; $y++) {
				if ($y == 0 && (ord($frame[$y][$x]) & 1)) {
					$this->runLength[0] = -1;
					$head = 1;
					$this->runLength[$head] = 1;
				} else if ($y > 0) {
					if ((ord($frame[$y][$x]) ^ ord($frame[$y - 1][$x])) & 1) {
						$head++;
						$this->runLength[$head] = 1;
					} else {
						$this->runLength[$head]++;
					}
				}
			}

			$demerit += $this->calcN1N3($head + 1);
		}

		return $demerit;
	}

	public function mask($width, $frame, $level) {
		$minDemerit = PHP_INT_MAX;
		$bestMaskNum = 0;
		$bestMask = array();

		$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);

		if (QR_FIND_FROM_RANDOM !== false) {

			$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
			for ($i = 0; $i < $howManuOut; $i++) {
				$remPos = rand(0, count($checked_masks) - 1);
				unset($checked_masks[$remPos]);
				$checked_masks = array_values($checked_masks);
			}
		}

		$bestMask = $frame;

		foreach ($checked_masks as $i) {
			$mask = array_fill(0, $width, str_repeat("\0", $width));

			$demerit = 0;
			$blacks = 0;
			$blacks = $this->makeMaskNo($i, $width, $frame, $mask);
			$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
			$blacks = (int) (100 * $blacks / ($width * $width));
			$demerit = (int) ((int) (abs($blacks - 50) / 5) * N4);
			$demerit += $this->evaluateSymbol($width, $mask);

			if ($demerit < $minDemerit) {
				$minDemerit = $demerit;
				$bestMask = $mask;
				$bestMaskNum = $i;
			}
		}

		return $bestMask;
	}

}

class QRrsblock {

	public $dataLength;
	public $data = array();
	public $eccLength;
	public $ecc = array();

	public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs) {
		$rs->encode_rs_char($data, $ecc);

		$this->dataLength = $dl;
		$this->data = $data;
		$this->eccLength = $el;
		$this->ecc = $ecc;
	}

}

;

class QRrawcode {

	public $version;
	public $datacode = array();
	public $ecccode = array();
	public $blocks;
	public $rsblocks = array();
	public $count;
	public $dataLength;
	public $eccLength;
	public $b1;

	public function __construct(QRinput $input) {
		$spec = array(0, 0, 0, 0, 0);

		$this->datacode = $input->getByteStream();
		if (is_null($this->datacode)) {
			throw new Exception('null imput string');
		}

		QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);

		$this->version = $input->getVersion();
		$this->b1 = QRspec::rsBlockNum1($spec);
		$this->dataLength = QRspec::rsDataLength($spec);
		$this->eccLength = QRspec::rsEccLength($spec);
		$this->ecccode = array_fill(0, $this->eccLength, 0);
		$this->blocks = QRspec::rsBlockNum($spec);

		$ret = $this->init($spec);
		if ($ret < 0) {
			throw new Exception('block alloc error');
			return null;
		}

		$this->count = 0;
	}

	public function init(array $spec) {
		$dl = QRspec::rsDataCodes1($spec);
		$el = QRspec::rsEccCodes1($spec);
		$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);


		$blockNo = 0;
		$dataPos = 0;
		$eccPos = 0;
		for ($i = 0; $i < QRspec::rsBlockNum1($spec); $i++) {
			$ecc = array_slice($this->ecccode, $eccPos);
			$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
			$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);

			$dataPos += $dl;
			$eccPos += $el;
			$blockNo++;
		}

		if (QRspec::rsBlockNum2($spec) == 0)
			return 0;

		$dl = QRspec::rsDataCodes2($spec);
		$el = QRspec::rsEccCodes2($spec);
		$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);

		if ($rs == NULL)
			return -1;

		for ($i = 0; $i < QRspec::rsBlockNum2($spec); $i++) {
			$ecc = array_slice($this->ecccode, $eccPos);
			$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
			$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);

			$dataPos += $dl;
			$eccPos += $el;
			$blockNo++;
		}

		return 0;
	}

	public function getCode() {
		$ret;

		if ($this->count < $this->dataLength) {
			$row = $this->count % $this->blocks;
			$col = $this->count / $this->blocks;
			if ($col >= $this->rsblocks[0]->dataLength) {
				$row += $this->b1;
			}
			$ret = $this->rsblocks[$row]->data[$col];
		} else if ($this->count < $this->dataLength + $this->eccLength) {
			$row = ($this->count - $this->dataLength) % $this->blocks;
			$col = ($this->count - $this->dataLength) / $this->blocks;
			$ret = $this->rsblocks[$row]->ecc[$col];
		} else {
			return 0;
		}
		$this->count++;

		return $ret;
	}

}

class QRcode {

	public $version;
	public $width;
	public $data;

	public function encodeMask(QRinput $input, $mask) {
		if ($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
			throw new Exception('wrong version');
		}
		if ($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
			throw new Exception('wrong level');
		}

		$raw = new QRrawcode($input);

		QRtools::markTime('after_raw');

		$version = $raw->version;
		$width = QRspec::getWidth($version);
		$frame = QRspec::newFrame($version);

		$filler = new FrameFiller($width, $frame);
		if (is_null($filler)) {
			return NULL;
		}

		for ($i = 0; $i < $raw->dataLength + $raw->eccLength; $i++) {
			$code = $raw->getCode();
			$bit = 0x80;
			for ($j = 0; $j < 8; $j++) {
				$addr = $filler->next();
				$filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
				$bit = $bit >> 1;
			}
		}

		QRtools::markTime('after_filler');

		unset($raw);

		$j = QRspec::getRemainder($version);
		for ($i = 0; $i < $j; $i++) {
			$addr = $filler->next();
			$filler->setFrameAt($addr, 0x02);
		}

		$frame = $filler->frame;
		unset($filler);


		$maskObj = new QRmask();
		if ($mask < 0) {

			if (QR_FIND_BEST_MASK) {
				$masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
			} else {
				$masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
			}
		} else {
			$masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
		}

		if ($masked == NULL) {
			return NULL;
		}

		QRtools::markTime('after_mask');

		$this->version = $version;
		$this->width = $width;
		$this->data = $masked;

		return $this;
	}

	public function encodeInput(QRinput $input) {
		return $this->encodeMask($input, -1);
	}

	public function encodeString8bit($string, $version, $level) {
		if (string == NULL) {
			throw new Exception('empty string!');
			return NULL;
		}

		$input = new QRinput($version, $level);
		if ($input == NULL)
			return NULL;

		$ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
		if ($ret < 0) {
			unset($input);
			return NULL;
		}
		return $this->encodeInput($input);
	}

	public function encodeString($string, $version, $level, $hint, $casesensitive) {

		if ($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
			throw new Exception('bad hint');
			return NULL;
		}

		$input = new QRinput($version, $level);
		if ($input == NULL)
			return NULL;

		$ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
		if ($ret < 0) {
			return NULL;
		}

		return $this->encodeInput($input);
	}

	public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint = false) {
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encodePNG($text, $outfile, $saveandprint = false);
	}

	public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) {
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encode($text, $outfile);
	}

	public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) {
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encodeRAW($text, $outfile);
	}

}

class FrameFiller {

	public $width;
	public $frame;
	public $x;
	public $y;
	public $dir;
	public $bit;

	public function __construct($width, &$frame) {
		$this->width = $width;
		$this->frame = $frame;
		$this->x = $width - 1;
		$this->y = $width - 1;
		$this->dir = -1;
		$this->bit = -1;
	}

	public function setFrameAt($at, $val) {
		$this->frame[$at['y']][$at['x']] = chr($val);
	}

	public function getFrameAt($at) {
		return ord($this->frame[$at['y']][$at['x']]);
	}

	public function next() {
		do {

			if ($this->bit == -1) {
				$this->bit = 0;
				return array('x' => $this->x, 'y' => $this->y);
			}

			$x = $this->x;
			$y = $this->y;
			$w = $this->width;

			if ($this->bit == 0) {
				$x--;
				$this->bit++;
			} else {
				$x++;
				$y += $this->dir;
				$this->bit--;
			}

			if ($this->dir < 0) {
				if ($y < 0) {
					$y = 0;
					$x -= 2;
					$this->dir = 1;
					if ($x == 6) {
						$x--;
						$y = 9;
					}
				}
			} else {
				if ($y == $w) {
					$y = $w - 1;
					$x -= 2;
					$this->dir = -1;
					if ($x == 6) {
						$x--;
						$y -= 8;
					}
				}
			}
			if ($x < 0 || $y < 0)
				return null;

			$this->x = $x;
			$this->y = $y;
		} while (ord($this->frame[$y][$x]) & 0x80);

		return array('x' => $x, 'y' => $y);
	}

}

;

class QRencode {

	public $casesensitive = true;
	public $eightbit = false;
	public $version = 0;
	public $size = 3;
	public $margin = 4;
	public $structured = 0;
	public $level = QR_ECLEVEL_L;
	public $hint = QR_MODE_8;

	public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4) {
		$enc = new QRencode();
		$enc->size = $size;
		$enc->margin = $margin;

		switch ($level . '') {
			case '0':
			case '1':
			case '2':
			case '3':
				$enc->level = $level;
				break;
			case 'l':
			case 'L':
				$enc->level = QR_ECLEVEL_L;
				break;
			case 'm':
			case 'M':
				$enc->level = QR_ECLEVEL_M;
				break;
			case 'q':
			case 'Q':
				$enc->level = QR_ECLEVEL_Q;
				break;
			case 'h':
			case 'H':
				$enc->level = QR_ECLEVEL_H;
				break;
		}

		return $enc;
	}

	public function encodeRAW($intext, $outfile = false) {
		$code = new QRcode();

		if ($this->eightbit) {
			$code->encodeString8bit($intext, $this->version, $this->level);
		} else {
			$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
		}

		return $code->data;
	}

	public function encode($intext, $outfile = false) {
		$code = new QRcode();

		if ($this->eightbit) {
			$code->encodeString8bit($intext, $this->version, $this->level);
		} else {
			$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
		}

		QRtools::markTime('after_encode');

		if ($outfile !== false) {
			file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
		} else {
			return QRtools::binarize($code->data);
		}
	}

	public function encodePNG($intext, $outfile = false, $saveandprint = false) {
		try {

			ob_start();
			$tab = $this->encode($intext);
			$err = ob_get_contents();
			ob_end_clean();

			if ($err != '')
				QRtools::log($outfile, $err);

			$maxSize = (int) (QR_PNG_MAXIMUM_SIZE / (count($tab) + 2 * $this->margin));

			QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin, $saveandprint);
		} catch (Exception $e) {

			QRtools::log($outfile, $e->getMessage());
		}
	}

}

?>